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Author Topic: Reading a spark plug....NGK  (Read 983 times)

Stig / Major Tom

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Reading a spark plug....NGK
« on: July 19, 2015, 02:20:50 AM »
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Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

CROSSBOLT

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Re: Reading a spark plug....NGK
« Reply #1 on: July 19, 2015, 07:59:00 PM »
One of the best ones so far. Thanks!

Karl
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

Yager200i

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Re: Reading a spark plug....NGK
« Reply #2 on: July 20, 2015, 02:33:10 AM »
Here is the spark plug related stuff I use.



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Jeopardy4100

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Re: Reading a spark plug....NGK
« Reply #3 on: July 20, 2015, 05:13:44 AM »
Stig & Yag, thanks for the informative references.  Had just pulled the plugs on our boats kicker.  Just a bit rich according to the pics.  Thanks again
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Yager200i

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Re: Reading a spark plug....NGK
« Reply #4 on: July 22, 2015, 07:44:33 PM »
It might not be too rich, your plug might be too cold of a heat range. Unless you're using the heat range recommended by the manufacturer, then it'd be too rich.
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Jeopardy4100

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Re: Reading a spark plug....NGK
« Reply #5 on: July 23, 2015, 08:28:30 AM »
It is the proper plug.  After reading your response I checked with boat mechanic.  He said Honda motors used primarily for trolling will show a slightly richer burn.  Guess we will have to open her up a few times.
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